Choir members sing the "Yellow River Cantata" during a chorus contest in Sanmenxia,central China's Henan Province, May 22, 2014. Members of 24 choirs attended a "Yellow River Cantata" chorus contest Thursday in Sanmenxia. The "Yellow River Cantata" is a 1939 chorus work by composer Xian Xinghai, which inspired the Chinese people to standup against Japanese aggression. (Xinhua/Zhu Xiang)